LT1944 - LT1944是Dual Micropower Step-Up DC/DC Converter

LT1944是LINEAR凌力尔特公司的一款LCD / CCD / OLED 偏置产品，LT1944是LT1944是Dual Micropower Step-Up DC/DC Converter，本站介绍了LT1944的封装应用图解、特点和优点、功能等，并给出了与LT1944相关的LINEAR元器件型号供参考。

LT1944 - LT1944是Dual Micropower Step-Up DC/DC Converter - LCD / CCD / OLED 偏置 - 电源管理 - 凌力尔特

LT1944 - Dual Micropower Step-Up DC/DC Converter

LT1944 - Dual Micropower Step-Up DC/DC Converter - Linear Technology（凌力尔特）

功能描述

The LT1944 is a dual micropower step-up DC/DC converter in a 10-pin MSOP package. Ech converter is designed with a 350mA current limit and an input voltage range of 1.2V to 15V, making the LT1944 ideal for a wide variety of applications. Both converters feature a quiescent current of only 20μA at no load, which further reduces to 0.5μA in shutdown. A current limited, fixed off-time control scheme conserves operating current, resulting in high efficiency over a broad range of load current. The 36V switch allows high voltage outputs up to 34V to be easily generated in a simple boost topology without the use of costlt transformers. The LT1944's low off-time of 400ns permits the use of tiny, low profile inductors and capacitors to minimize footprint and cost in space-conscious portable applications.

特点

Low Quiescent Current:20μA in Active Mode<1μA in Shutdown Mode

Operates with VIN as Low as 1.2V

Low VCESAT Switch: 250mV at 300mA

Tiny 10-Pin MSOP Package

Uses Small Surface Mount Components

High Output Voltage: Up to 34V

应用

LCD Bias

Handheld Computers

Battery Backup

Digital Cameras